Rodolfo Hernandez, a millionaire businessman and ex-mayor under investigation for corruption, has made poverty and government graft the focus of his campaign for the Colombian presidency. At a meeting with fellow businessmen in the northeastern city of Bucaramanga, his political stronghold, Hernandez warns that growing inequality could lead to a class war in Colombia. Hernandez, 77, finished in a surprise second place in a first election round on May 29 and will face leftist former Bogota mayor Gustavo Petro in a runoff on June 19. IMAGES AND SOUNDBITES